Malicious PDF — malware analysis report

Static analysis result for SHA-256 f22e3b35ed4cdee7…

MALICIOUS

PDF

55.5 KB Created: 2020-07-31 22:03:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c1ddcbda7d6f9e2d443c4fc52eaad81 SHA-1: fcc9c4da55adf520284f3a22d4a072e8610eec66 SHA-256: f22e3b35ed4cdee7c80bb2e213d41b987fe964818071f9c82736512c8d16ee03
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The document body text, though partially corrupted, includes the malicious URL, suggesting the intent is to trick the user into clicking the link under the guise of downloading a PDF. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic firing confirms the primary URL leads to known malicious infrastructure.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=1st+edition+player%2527+s+handbook+pdf
    • http://files.katikatiwaihibeachcommunityawards.co.nz/uploads/1/3/0/9/130969461/5a181d708.pdf
    • http://files.woodcreekhighschoolband.com/uploads/1/3/1/4/131453847/livunifovupopodoxe.pdf
    • http://files.celestepedri.ca/uploads/1/3/1/4/131453894/vasozasipesa_numopimikuba_lutitosa_poforirizasojeb.pdf
    • https://cdn.shopify.com/s/files/1/0429/5704/5913/files/91285001745.pdf
    • https://cdn.shopify.com/s/files/1/0428/7053/8406/files/39911829167.pdf
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/78031630257.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/voxetevew.pdf
    • https://cdn.shopify.com/s/files/1/0434/4827/1000/files/fojaxasofepebojijimimal.pdf
    • https://cdn.shopify.com/s/files/1/0432/4638/7367/files/23727847429.pdf
    • https://cdn.shopify.com/s/files/1/0434/6265/6157/files/86443833233.pdf
    • https://cdn.shopify.com/s/files/1/0428/3046/3142/files/gatodusovexaramibatite.pdf
    • https://cdn.shopify.com/s/files/1/0433/7185/6026/files/81210051675.pdf
    • https://cdn.shopify.com/s/files/1/0433/9122/1923/files/mimezu.pdf
    • https://cdn.shopify.com/s/files/1/0434/4872/9766/files/keguvidewurijunu.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000099fd.bin
f6f44b7f0814810be44faf858cf649bf92518ff83795075f004f6e476f2b9cac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x99FD 5428 bytes
font_01_sfnt_off0000ac77.bin
c21af5940530ad409b59e1cf9c6ea5699418cc4b980e47d0edc7bc231ea679d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC77 10736 bytes

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